Woodworking-machine.



J. F. WOLVIN. WOODWORKING MACHINE.

APPLICATION FILED MAR. 25, 1911.

1 ,104,858-, Patented July 28, 19M

2 SHBETS-SHEIBT 1.

@Mwamg am w oa THE NORRIS PETERS CO.. PHOTO-LITHQ. WASHINGTON, D. C.

J. P. WOLVIN.

WOODWORKING MACHINE.

APPLICATION FILED MAR.25, 1911.

Patented Ju1'y28, 1914.

2 SHEETS-SHEET 2.

um 0/7 in QKM 1 w.

barren s'rA'rEs PATEN O I E OHN F. WoLvrN, or sit. CLAIR, MICHIGAN;

WOODWORKING-MACHINE.

Specification of Letters Patent. Patented uly 28, 19 Application filedMarch 25, 1911. SeZ'ialNo. 616,954.

splinter the work at the point where they finally leave it, because theknives are usually ground to a profile corresponding to the contourofthe bead, molding, tenoningface or the like which they are supposed toform so that the heel or rear part of the cutting edge passes beyond oneof the knife paths, breaking out of the work and leaving a rough margin.

This inventionrelates to a paneling machine or the like and moreespecially to an arrangement thereof whereby with the use of oppositelydisposed cutters or knives arranged in the cutting head. the paths'oftravel of the successive knives, overlap between the margins of the cutmade by the knives and whereby the knives enter the work from eachexterior margin, the edge of each cutter being so disposed as to make adraw out commencing at the. face of the work and terminating at aninterval from the other face. As herein illustrated, provision islikewise made for reinforcing the work at the point where the cuttersclear themselves at the end of their path and prevent chips or splintersfrom formingat that point, although this does not form apart of theinvention. I

This invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the appended claims. I

In the drawings, Figure 1 is a view in elevation of a portion of amachine that embodies features of the invention; Fig. .2 is a plan viewin detail, largely diagrammatic showing the cooperation of a cutter headand a chip breaker upon the work; Fig. 3 is an I enlarged view in detailof a cutting head; Fig. 4 is a view in section taken on or about line IVIV of Fig. 3 with representation of a tenon cut or wood block; Fig. 5 isa View in detail, enlarged, of one of the cutters of a head in operativerelation to a tenon cut; Fig. 6 is a similar "view of'a out ter followng the cutter shown in Fig. 5;

Fig. 7 is a diagrammatic view illustrating the overlapping of the cutteredge arranged for an ordinary ogee. Fig. 8, a perspective view indetail'of chip breaker.

As herein indicated as one form of machine embodying the invention, abase 1 of suitable design has a feed carriage 2 arranged to carry workpast the head of a cutter spindle 3 driven from any convenient source ofpower. The inner edge of work placed on the table bears against the chip"breaker 4: havinga head 5 whosepoints yieldingly contact with the workand are I withdrawn out of the path of anywcutter' which may be mountedon the spindle to clear the latter as ,the work advances by means of aslide bar 6 that is .reciprocated longitudinally by a cam track 7. Theconformation of the latter is arranged to move the head 5 incorrespondence. to the advance of the Work past the'cutter.Preferably'the head is yieldingly projected against thework by a springarm 8 and the cam trackis engaged by friction rolls 9 on the member '6.

A pair of cutters 10 areseverally clamped between the pairs 10.A/cutting edgeshown at 17 on the cutters is oblique to their path withthe point or forwardeXt-remity 18 thereof arranged to enter the workfirst. The rear 19 or heel of the cutting edge 17 is arranged toclear oronly partially finish the surface of the cut. I ranged around the disks11 alternatev with the other cutters 20 whose forming edges strike thesurface of the workon the other margin of the cut from the marginentered by the points 18 while their corresponding heel portions aregiven clearance so as not to strike the surface of the work swept by theacting portion of the other cutting tool edges.

Thecutters 10 arthe portion 25 on the cutting edge of the other toolswhere it overlaps the cutting edge of the first tool is relieved so asnot to reface the work done by the latter cutter.

In both arrangements of the cutting edge the obliquity of the knife edgeto the path of motion of the tool issuch that a shearing draw out isobtained working from the outside to the middle portion of the finishedsurface.

As the cutters break out of the rear face of the work the thin edge ofthe wood adjacent the cutter is backed by the chip breaker head 5 whichmay be adjusted to so closely approach the knife points that it isimpossi ble for chips or splinters to break off from the rear face ofthe work.

While herein shown with only two pair of each kind of cutters in theheads it is obvious that with larger heads a plurality of cutters may besecured alternately around the periphery of the disks.

In'operation a shearing cut from the outside to the middle or from bothmargins to the middle of the traversed surface, forms a sharp clearangle along the outer margins and effectually smooths the centralportion as there is no chance there for the wood to splinter or breakaway. This enables very 7 clearly defined and smooth molding andprofiling of the softer kinds of wood and of wood which is irregular indensity or is cross grained. The supporting of the thinner portions ofthe wood where the cutters work out of the rear margin likewise preventsthe formation of a fin or bur or ragged margin at this point and thework when it leaves the margin is completely finished without thenecessity of sand-papering or re-cutting. One of the chief features ofthe invention is the arrangement of alternate pairs of cutters workingfrom the outer margins of the wood to be out toward the middle portionso that each knife clearly incises the wood at each margin and tends tocompress and solidify the grain at the outer angle of the out instead oftearing it out and splintering it as in the usual type of cutters.

Obviously, changes in the details of construction may be made withoutdeparting Oopiu of thin "tent be obtained for from the spirit of theinvention and I do not care to limit myself to any particular form orarrangement of parts.

Vhat I claim is: I

1. In a wood working machine, an edge paneling tool comprising aspindle, a circular spacing member thereon provided with peripheraledging teeth, a pair of disks bearing on each side of the spacingmember, a pair of cutters in each disk having bodies with under-cutfaces that lie in bearing slots in the disks and blades projectingbeyond the disks with cutting edges adapted to incise work from oneouter margin thereof only, the cutting members of one disk alternatingwith the cutting members of the other disk, and both sets of memberscotiperating with the edging teeth of the spacing member to form aprofile tenoning margin on work fed to the tool, and pins transverselydisposed in the disk and adapted to clamp against the beveled faces ofthe cutters and lock the latter in the slots.

2. In a wood working machine, a tenoning and profiling tool comprising aspindle, a circular spacing member thereon provided with peripheraledging teeth, a pair of disks on the spindle against the sides of thespacing member, a pair of cutters in each disk having bodies withundercut faces that lie in bearing slots in the disk and projectingblades that have obliquely disposed profile.

cutting edges adapted to incise work along one outer margin thereofonly, the pathsdescribed by the profile edges of the two sets of cuttingmembers overlapping between the margins of the cutter, and the points ofthe entrance of the cutting edges of the work being in advance of thepoints of leaving the work, the disk cutters cooperating with theperipheral teeth of the spacing member upon work fed to the cutter toform the desired. profile and tenon face thereon, and tapered pinstransversely adjustable through the slotted portions of the disk adaptedto bear against the beveled portions of the cut ters and retain thelatter in the slots.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN F. VVOLVIN.

five cent: each, by lddrenin: the Gommlnionet at mum.

' Washington, 18.0.

